Photographic printing apparatus.



PATENTED AUG. 6, 190?.

A. H. M LLISON. PHOTOGBAPHIG PRINTING APPARATUS.

APPLICATION FILED 001224, 1904.

6 SHEETS-SHEET 1.

olmzngf fil I B AM WITNESSES PATENTED AUG. 6, 1907.

A. H. MALLISON. PHOTOGRAPHIG PRINTING APPARATUS.

APPLICATION IILIBD 001224. 1904.

6 SHEETS-SHEET 2.

. hVV/i/VTOR. W

W A TTORNEY Q PATEIV'ITE jj AUG, 6. 1907.

A. H. MALLISONQ PHOTOGRAPHIG PRINTING APPARATUS.

APPLICATION FILED 0OT.24. 1904.

6 SHEETS-SHEET 3.

NVENTOR.

A TTORNE 13;:

iATENTED AUG. 1.907."

A. H. MALLISON.

PHOTOGRAPHIG PRINTING APPARATUS.

'APPLIOATION FILED 00'1.24,

s $HEETSSHBLT 4.

Q WITNESSES:

IJVI/ENTOR.

PATENTED AUG. *6, 1907.

A. H. MALLISON. PHOTOGRAPHIG PRINTING APPARATUS.

APPLICATION FILED OOT.24, 1904.

6 SHEETS-SHEET 5.

WAW

WITNESSES:

7 O 9 1 6 nv D. E m N E T A P N 0 S I L L A M H A A 6 2 6 00 m N PHOTOGRAPHIG PRINTING APPARATUS.

APPLIOATION FILED 00124, 1904.

e SHEE S-Suzi" e.

3 WM UWM lnmllllllml WITNESSES:

V NITE s'rrns ATEN LVIN 11. iiALLisoN, OF ARLINGTON, NEW JERSEY, ASSIGNOR To UNDERWOOD AND UNDERWOOD, OF ARLINGTON, NEW JERSEY, A CORPORATIQN, OFNEW JERSEY.

PHOTOGRAPHIC PRINTING APPARATUS.

Patented Aug. 6, 1907.

Application filed October 24, 1904. Serial No. 229,706.

v libhom it may concern! Be it known that I, Anvm H. MALLIsomresiding at r'irlingtom'in the county of Hudson and State of New .I scy, have invented certain new and useful Improvenc s in Photographic Printing Apparatus, of which the t1 iilowing is a full, clear, and exact description, such ill enable others skilled in the art to'which it appertains to make and use the same.

f' This invention relates to photographic printing apparatus; i One'oi the objects thereof is to provide a simple and efficient piece of apparatus whereby a succession of prints can be made from a single negative without the necessity of disturbing either the latter or the source of l gligh t to which it is exposed.

' Another object is to provide means for holding the "sensitised paper firmly against the negative during the gape-anon of printing. v i

Another object is to provide means in a piece of apparatus of the above type whereby the intensity of the light maybe varied and the exposure of the plate there may be automatically cut off at the proper time. Another object is to: provide means of the above typeswhich shall be entirely automatic and reliable in action. Other objects will be in part obvious and in partpoint ed'o'ut hereinafter. The invent ion accordingly consists in the features of "construction, combinations of olcments'and arrange- "ment of parts which will be xemplilied in the apparat \erein described and the scope of the application of ion of the same. Fig. 3 is a plan. I Fig. 4 is an enlarged section taken on the line 4-4 of Fig. 1. Fig.

I "'5 is side olevationof portions of the above embodiinc-n1; on an enlarged scale, certain parts being broken may; Fig. (5 is a plan of certain parts shown in Fig. 5,

certain parts thereof being broken away. Fig. 7 is a sectional elevation taken centrally through a portion of the apparatus. Fig. 8 is an end elevation on an enlarged scale of a casing and associated parts taken in the direction indicated by the arrow in Fig. 1. Fig. 9 is an enlarged section taken .centrally through a portion of I the casing substantially on the line -99 of Fig. 1.

Fig. 10 is a portion of a sensitized strip showing holes perforated for the purpose of-grippingthe same. Fig.

11 is an enlarged vertical section showing a slightly difi'erent embodiment of certain features of my invention.

Fig. 12 is a horizontal section taken on the line 1212 ol' Fig. 11.

Similar reference characters refer to similar parts throughout the several views.

igure] isa side elevation of the same. Fig. 2 is an end In order to render clearer the general nature of my invention, it may here be noted-that it is often desirable to make a succession of prints from a single negative. as, for example, in'the case of making photographic prints for use in connection with a stereoscop c. On account of the small selling price of such prints, it is of the utmost importance that the apparatus whereby they are formed be as nearly automatic in action as possible and that the interval of time between successive exposures be as small-as is consistent with the general efficiency of the apparatus. In this way the cost of production is reduced by means of eliminating the necessity for manuallabor and cutting short the time required to form the print. It is also highly desirable in apparatus of this type that the action of the several parts be positive,

and this is of especial importance with regard to the means whereby the sensitized paper is moved with relation to the frame, as, if any slipping occurs at this point, the paper is unlikely to be drawn throughout the length of ,an entire print,-and thus the prints are caused to overlap. It is also requisite for the best results that the intensity oi' the light be adjustable and that the sensitized paper he firmly held against the negative. The above and other advantages are attained in constr' ctions of the nature of that hereinafter described.

Referring now to Fig. 1 of the drawings, 1 and 2 represent uprights connect ing which in pairs are the cross pieces 3. Between these cross pieces is stretched a longitudinal support 4 adapted to stiffen the frame, and

mounted upon the uprights adjacent their upper ends is a casing 5.' Within this casing is mounted a source of light which, in this case, is shown as an incandescent electric lamp. By the term source of light as used throughout this specification and in the following claims is intended any member or instrument adapted to emit light of an appreciable intensity irrespective of the agent whereby the light is produced, and the term frame 9 which in this case, comprises the tapering side walls 10 and a gripping member 11 which is slid-ably mounted in guide 12 and is pressed against the rear side of the negative 9 by means of a spring 13.

Pivot-ally mounted in l'rontot' the tapering walls 10 is a hinged shutter 14, fired upon which is a short 10 ver arm 15. The latter arm is connected by means of a link 16 with a lever 17 pivoted at 18 upon a supporting block 19 mounted upon the casing. The remaining end of this lever is pivotally connected with a sliding plate 20 the end of which lies within the patli of travel of a cam ll fixed upona shaft 22 which is jour rialed within upright members 23 secured to the frame. The sliding plate 20, the range of movement ol which is limited as by slots 24 and pins 2-5, is normally held in an advanced position corresponding to an open condition of the shutter by means of a spiral spring 26 preferably secured atone end to the pivotal joint between link 16 and lever 17, and having its remaining end fixedto the frame. lhe chance of entry of light between the shutter 14 and the tapering walls .10 at the top and bottom thereof is eliminated by means of beveled wings 27 secured to the shutter. In this manner, cam 21 forcing the slide 20 to the rear, will hold the shutter in closed condition, but upon thc slide being released, spring 26 will open the shutter. Driven from a sprocket wheel 28 upon shaft 22 which in turn is driven from any desired source ol' power, as by means of chain 29, is a sprockct wheel 30 fixed upon a shaft 31 which is jonrnaled within suitable bearings in upright members 23. Upon the latter shaft is acam 32 adapted to actuate an'arm 33 through a set screw 34. Arm 33 is drawn in the direction of the cam by means of a spring 35. 3G isa slide which is adapted to reciprocate within a guide 37 secured to the side of the casing. Fixed upon slide 36 is an arm 38 having secured thereto a l'eltlincd member which is normally forced by spring 35 in thc direction of the'negative for a purpose hereinafter cxplaincd.

At the upper extremity oi uprights l is mounted a supply roll 40 upon which is wound a. strip of sensitized paper ll. which is directed by means of guide 42 so as to pass the negative, as is clearly shown in Fig. l of the drawings. Strip 4l passes from the rear surface of the negative to a receiving roller journalcd in brackets 44 mounted upon the uprights l. The strip is maintained under tension by means of this roller which is provided with a pulley 45 connected with a driving pulley 46 upon the shaft 22 by means of a small belt. 47. In this manner the roller has a tendency to rotate in a direction tending to take up any slack in the strip 41, the bcll 47 slipping upon its pulleys upon the strip being thus drawn taut. The dcsired intermittent movement, of strip ll is attained by means of the following mechanism.

A slide 18 is adapted to reciprocate within suitable roovcs in u )ri hts l and normally held in its n u-r-.

a l I most position by means of a connlcrbalance weight 4.). the cord 50 of which passes over a suitable pulley 5i. Slide 48 which, together with the associated parts forms what may be termed a clamp has positioncd thereinfa member 52 within thc. reccsscs 53 in which the strip 41 is guided. Member 52 is provided with perforations 54 registering with the largt r perforations 55 in the backing of the slide and a movable bar on bearing perforating pins 57 is slidably mounted upon the bolts 58. Secured to bar 50 at its ccntral portion. is a felt-covered plate 59 adapted to engage thc strip when the bar is thrust in its innermost. or opt-inlivc position and thus aid in gripping the samc. 'lhc desired movement ol' bar 56 is brought. about. b moans of a sliding rod (30 mounted upon support -l, and provided with 11 depending arm (3i, upon which is lixod a pin 62, and an upwardly projecting arm or lod (it) is actuated by means of a pin (cl lixcd upon]: crank disk 65 on shalt 31, thc pin engaging thc upwardly projecting arms 66 and G7 successively and thus cansing an intermittent reciprocating movement. of the rod. Pin (i l is so positioned and shall. 3t so orivcn as to cause the rod to move toward the slide when the latter is in its uppernnzst position and by means oi cip gaging the movable bar 56 thrust the pins 57 lhrough the strip and grip the same by means of m iulwr 55). Upon the slide reaching its loweri'nost. position, the pin 62 enters a notch 08 cut in the lower surface of bar 56 and the rod (50 thus has connection with the bar, and its movement isso controlled as to withdraw the same and release the strip when the parts reach this condition. The lower end oi slide 45: is connect d by means of a slotted link (39 with a crank 70 fixed upon the shaft 7], which is driven as by means of sprocket chain 72 and sprocket. 73 from shaft ill.

It may here be noted that the word paper' is used in a broad sense throughout this specification and in the following claims, as comprehending any pliable member adapted to be sensitized by the application of a suitable emulsion so as to be al'l'ccted by exposure to light. ll. may here be noted that the dmvnwardly extending arm (5] may be provided with a removable knife for the purpose of cutting the roll at any desired point.

The operation of the above described embodiment. of my invention is as follows:i-\ssinning lhc parts to be in the position shown in Fig. 1 of thc drawings and the sensitized paper from the roll -10 to bc suitably guided past a ncgative within the negative holder, and bearing in mind that the clamping member ll whcreoy the nt-gative is held in position is continually operating unless rcleascd by hand, as for thc purpose of changing the negative, the parts are so constructcd and arranged as to permit thc spring to cause member 39 to prcss the paper iirmly against the rear surface oi the ncgativo and the spring 26 to hold the shutter in open position. Just before the exposure has been completed, the length of which may be determined by mcans oi varying the speed of the machine or adjusting the position of the source of light, the paper is clampcd by the l'clt-' covered plate 59 and holes are punched through the paper by the pins 57 carried by the bar 50, said bar bcing iorced iorward by the upwardly projecting arm as of the rod (50, said arm (53 being niovcd in a forward dircction by the pin 6 1 on the crank disk (55 engaging llic upwardly yu'ojccting arm (36. After the papcr has been exposed under the ncgativc thc dt-tcrmincd length oi time, the shutter 14 is closed, the proper closing movement being transmitted by the cam 2t through thc slide 20, lcvcr l7, link 16 and arm l5.

from the paper by means ol cam 32 engaging sel.scrcw 2-34 in arm'ilil, which is conncctcd to thc number 3!) through thc slitlc 3t; and arm 38. At this time the slowly moving crank 70 has reached the lowcr cnd ol the slot. wi bin link of) and thus draws the cntirtclamp downwardly against thc forcev of weight ll). In this manner, a irtsh surface of scnsitizcd paper is brought opposite thc negative, and cam 32 inunt-dialcly thcrcaitcr rclcascs thc spring 3:), whi h draws thc lrcsh suriacc ol papcr against. llnncgalivc as above dcscribcd. This is instantly lulltmt'tl by lhe opcning of thc sliuttt-r ll,spring 2H bcin rclcast-d by cam 2!, and a sc ond cxposuro is bcgun. A l. .his point. llnpin As soon as tho shutter is clost-d, thc it'll-llllt'tl 'membcr flJ is rt-lcascd lOO . engages arm67 upon rod 60, and pin 62 being'posi- 'iied' within the recess 68', the movable bar. 56 is th rawn and the strip released. Grank 70 is how at L extreme of its path of travel and an upward %mpvement of the slide 48 under the influence of counter- 'a'la'nc'e 49 is immediately begun.

i operations may be repeated indefinitely and at any I esi dspeed, depending mainly upon the length of eitp,osure which it isdesired to give the print.

It will thus beseen that I have provided a simple, ii nsive and durable piece-oi apparatus whereby ession of prints may be made ironi a single nega- Jfhegripping mechanism is so positive in action as ractically to obviate any chance ofslipping, and an f cikactly uniform succession of movements of the strip lins obtained. The several parts, moreover, are :1 readily accessible and the negative may be changed with aminiihum of'effort. Also, suitable adjustments i provided, as above indicated, so as to cause the severalinovements to take plac'e at exactly the desired ime, and to vary the intensity of the source of light so as to suit the character of the negative used. n n Figs. 11 and 12 is shown a slightly different emdiluent of certain fcaturesofmy invention in which i h arm .61 is provided with a depending extension 74 to which is' adjustably secured a cutting blade 75 by i 1 ean's of the screw 76. A cross piece 77 is mounted pdri' uprights 1 and has secured thereto a blade 78 by 30, means of a nut 79'. Blades 75 and 78 are adapted to aetone with another and the strip 41 is thus cut into "sections exactly equal in length, each section cot'reriding to a single print. These sections may be rev d in any desired manner, as by means of a suitable .nchute; and basket. The advantages of the last described-embodiment for thepnrpose of automatically pa' ati'ng the several prints should be largely obvious. s I, any changes could be made in the above constructionand many apparently widely different emv'bodi'ments of my invention could be made Without ""depa" ting from the scope thereof, I intend that all er l contained in the above description or shown the-,acdompanying drawings shall be interpreted as lustrative and not in a limiting sense. I desire it also be understood that the language used in the followai'n 's is intended to cover all of the generic and gs pac fic features of the invention herein described and allstatements of the scope oi the invention, which, as e .a matter of language, might be said to fall therebetween. "Having described my invention, what I claim as anddesire to secure by Letters Patent is I nlapp aratus of'the class described, a casing. means dapt edzto. hold a negative iit one end of said casing, a ource of light ndjustably 'supported within said casing, means adapted to place successively, portionsof paper opposite said negative and then to release the paper a liiit'ter adapted to be interposed between snid source of light and said negative holding, means, and positively ct g automatic means adapted to interpose snid shull ,Ili apparatus of the class described, it using, means ted to hold'a negative at one end of said raising, :i y ,g H q st: light supported within said casing, means :idnpted to place successively, portions of paper opposite said negative and then to release the paper means adapted to press the paper in the direction of said negative holding means, iindpositlvely acting automatic means adapted to retract the same.

3. Inapparatus of. the class described, a casing, means The above series ithout the need for supervision or manual labor. 7

n'cnns adapted to. hold ii negative exposed to said source of light. means adapted to plzlcc succcssivcly, portions oi paper opposite said negative and then lo release the paper :1 shutter, nutoinzit'lc means for intro-posing the Stililtt lietu'ecn said source of light and said ncu'ziiive holding moans. inezins adapted to press the paper in the direction oi said negative holding means. and positively acting automatic means for retracting the same.

5. in apparatus of the class described. 21 source of light. :i negative holding frame mounted adjacent the some. means adapted to place successively, portions of paper opposite said negative and then to release the paper a movable member adapted to press the paper against the negative, a spring connected with said member, and auto matic power-actuated means adapted to overcomesnid spring and retract said member.

(i. In apparatus of the class described, a source of light, negative holding means, means adapted to place successively, portions of paper opposite said negative and then to relense the paper a hinged shutter adapted to swing, into a position between the negative and said source of light, automatic power-actuated means adapted to swing said shutter into closed position, and i1 SpliliL connected with and adapted to open the same.

7. In apparatus of the class described, a source of ligh negative holding means, a hinged shutter adapted to swing into a positionbetween the negative and said source of light, automatic power-actuated means adapted to close the so me, spring-iictuiited retracting menus connected with said shutter, :1 member adapted to exert at pressure against the negative in the direction of said source of light, ii spring having an operative connection therewith, and automatic power-actuated means adapted to overcome said spring and retract said member.

8. In apparatus of the class described, a casing, a source of light adjustably positioned therein, negative holding means at one end of said casing, a spring-retracted hinged shutter adapted to' swing into a position between the negative and said source of light, automatic poweractuated means for closing said shutter, a member'adzipted to exert a presnre against thenegntlve substantially in the direction of said source of light, a spring connected therewith and tending. to hold the same in operative position, and automatic power-actuated means adapted to overcome said spring and retract said member.

9. in apparatus of the class described, a source of light, negative holding means, and means adapted automatically to place successively 21 series of portions of paper opposite snid negative holding means and exposed to said source of light and then to release the paper.

11). in apparatus of the class described, it source of light, negative holding means, and automatic means adapted to' place successively and periodically .1 series of portions of paper opposite said negative holding menus and exposed to said source of light; and then to release the paper. 11. in apparatus ol the class described, a source of light. negative holding niezins, means adapted to hold a strip of paper, and automatic means adapted successively to place a series of portions of said strip of paper opposite said negative holding means and exposed to said source of light and then to release the paper.

12. in apparatus of the class described, a source of light. negative holding ineans,,ineiins adapted to hold n strip of paper, and means adapted successively to plaice il series of portions of said strip of paper opposite said negative holding means and exposed to said source of light and then to releiise the paper.

13. In apparatus of the class described, negative holding means, means adapted to hold a strip of paper, means adapted to guide the strip past the negative, and auto matte means adapted to grip and draw said strip of paper for a prcdctcrniinod distancc with rt-fcrcucc to said no trcattsv tncans vadapltd to hold a strip of papcr. tncans for guiding said strip past thc ncL'atirr. and automatic nit-ans adaptcd positivclt to rip and draw aid strip oi paper tirc and than to lcl asr tltc papor.

13. in apparatus of tltc lass dcst-rihcd. ncgatiro holdinu nicans. tnoaas adaptctl to hold a strip ot' papcr. tncans for Quittingsaid strip of papcr pst titc ntlirt' nicaus adaptcd positircly to .zt'ip and dr. w said strip for a prcdctcrtuincd distancc with rotcrcncc to d nozatirc holdingntcans. and nicans adaptod to rolcaso said strip I ripping ntcans.

of thc class dc'crihcd. ncgativc hold lttultis adaptcd to ltold a strip oi papi-r, moans for guiding said strip past thc nczatirc. a clamp aliont said strip. autotnatic tncans adaptcd to closc said clamp and tivcly grip said strip and to upon said i up and 1"!- c said strip. and tat-ans adaptcd to itnparl a rcciprocatin; ttltn'tlilt-lll to said clamp.

17. In apparatus of thc ciass dcscrihcd. nou'atirrholdv in:- moans. ntoans adaptctl-to hold a strip of papcr. nit-ans adap t-tl to ,quidc thc strip past said nc atirc holding. tncan clantp ahout said strip providcd with a pin. aurotnatic tncans adaptcd to closo said clamp and thrust said pitt through said strip. nit-ans atlaptcd to rcciprocat'c said clatnpin;- dcvicc and tncans for withdrawing said pin and tclcasiug said strip opcratirc wltcn said clamping ntcans is at tho lowcr tXtIOlitt of its patlt of travcl.

lH. ltt apparatus of tho class tits't'i'iiit'd. ncgatirc hold in: nt ans. lll tlllS adaptcd to hold a strip ot' papcr. int-an adaptcd to guidc said strip past thc ac ili\ clatnpin: -lll tltts ahout saitl strip of papcr. said clanuiim. ntcans contprising a niovaldo ntcntht-r licarin: a plurality of pins.- ntcaus adaptcd to rcciprocatc said clamping nit-ans. a slidahlc inclnhcr ndaptcd to utaltc oprrativc r nncction with said ntovahlc ntctuht-r whcn tho lattcr is at oat-h oi" liic cxtrcnn-s of its path ol trarcl. and automatic powcrartuatt d int-ans adaplcd to actuatc said ntovalilc llilililtl' through said slidahlc tncnthcr and alt crnatcly contract said liii'llll and thrust said p ns thcrcthrough and t'clcasc s. itl clamp anti withdraw saitl pi s il in apparatus of thc class drscriltcd. nog'ativc holding ntcans. tncans adaptcd to hold a strip ot papt'r. tncans adaptcd to guidc iltc strip past tltc nca'atirc. clamping, moans t-nihracing said strip. autontatic tut-ans adaptcd altcrnatol to contract and rclcaso said clamping ntcaus. a slottcd link conncctcd witlt id clamping; incans. atul a t-t-roluhlc tuctuhcr proridrd witlt a crank pitt positiunt-d within thc slot of said link and adaptod to impart an iu lcrn'iittcut rcciprot-atiug tnorcutcut to said rlainpin; tut-ans. "1'. ln apparatus of lltc dcscritictl. a sourctol' ht. a casing within whiclr aid sourct of light istnountcd. ntcaus adaptt-d to hold a ncgatirc at ottc t-nd of said ca iu 4'. tncansadaptcd to hold a strip at papcr. ntcans for guiding thc strip past thr lltj; tivc. attd automatic tucaus adaptt-d succcssit'cLr to p acc strip of papcr oppositc said In t-Xposcd to said s urcc o" pitpct'.

'11. la apparatus li::ltt. a rasing. t'llti tilid int-ans t'or lllcil class l'ics of portions of said ..tti\'c ilnltiilig' tncaus attd light and tl'tcn to rt-lcasc tho of tho class dcs ti'ncd. :t sourcc. ot' tncans adaptctl to ltold a ucgatirc at outtncans tdaptod to hold a strip of papcr. tltc strip pa t thc uc' tirc, automatic s adaptctl stat-ct \'cl to placc a scrics of portions of said strip of papcr oppositc said ncgatiro holding nioans and cxposcd to said sourrc of light and thcn to rclcasc tlnpapcr. and ttoutatic nit-ans adaptcd 'illl 'l'lilillttlli to prts said strip ,ainst tltc ucg'aiirt'.

in apparatus of th cla s dt'st'rihcd. a casin sourrt o; l ulit. tucnns adaplt-d to ltold a strip of papcr,

Incaus f r guiding said strip hctwccn said -tul cr and llh automatic ncggativo. and automatic m ans adaplod positiroly to grip said strip and draw thc santc for a l l tit'lLi'lililtf'd distaurc with rt-tor nco to said ncgatirc holding titttlns and tin-n to i't-it:lstthc satn 222, in combination. a casing. ncgatirc holding tn tits at out cud thcrcot', a sourco of l' adjustaitly posit'iontd within said asin" a lillfl'ililil shuttcr adapted to ho intcrpo'scd lwtwccn said soul-r0 ot' lizht and thc ucgatirc. an auttaaatic'tilr a'tnalcd Ititlii t t' adaptcd to cxcrt' a prcssure in tho dir -ction of said sOurrv of light. moans adaptcd to hold a strip of papt-r. mcans for guiding thtstrip past thc ucgatirc. a clamp al out said strip. and automatic powcr-at-tuatcd nit-ans adaptod succcssit'cly to (l-, '0 said shuttcr. r i 'asc aid press-art applying moans. grip said papcr. draw said clamp ttowmrardLr. rcapply said prossut'c. upon said slutttcr. rt-lcastsaid clamp and rt-trautv the satnc.

24. in apparatus of tho dcscrihcd. a casing, a sourccof light fustahly po itioncd withitt said casing, uog'atitc holding nicans at onc cud lhcrcol, a spr' rctr: 'tcd shuttcr mountod adjaccut said ncgative holding tucans. ittttoutatir poww-actuatcd moans fonintcrpnsiug said shuttct' itctwt-cn said sotirrt' of light and thc acgativt', a roll adaptcd to hold a strip of papor. tncans for guiding said strip past the ncgativc. a sprittwprcsscd inctnlicr adaptcd to prcss 'aid strip tinst said ncgatire autollltllit' powcr-actuattd mcan's t'or l'tll'flk'iil'l: tho saint. a clatnpiny. tnctula-r ahout said strip. a pin within said clamping ntcnihcr. nit-ans adapted to closc said clamping tuctnlicr and thrust said pin through said strip, a l'tVOill iit! mentw. a'crank pin tltcrt-on. a Si llttti link c-onncctcd with said clamping ntcnthcr. said crank pin projccting through thc sloth-d cud oi said link. and automatic powcr-actuatcd tut-ans :tdaptcd snt-ct-ssircly to rtosc said clamp and thrust said pin throu It said strip. tnovc said clatnp for a prcdetcrntincd distancc. upon said clamp and rctract thc saute. in apparatus at tho ch cs dcscrihcd. a fratnc. a casing ntouutcd thcroon. a soul-cc of light adjustahly positioned within said casinu. nuaatiro h lding moans at one end thcrcot'. a spring-rctractcd hingcd shutlc" adaptcd to swing ittto a position hctt ccn said ncgativc holding moans and said soul-cc of light. a shaft tnountcd upon said f ame. a rant upon said shaft. :1 conncction hctwccn said Sillitltl and id cant \\'iltllil id ram is adaptcd to close said shutter against thc torcc of said spritt a roll adapird to hold a strip of papcr. ntcatts for guidiu, thc strip past the ncgatii'c. a springflprcsscd slidahlc inctnltcr adapted to prcss said strip tinst thc ttcgativc. a sccond shaft nionntcd upon said i no. a rant upon said shaft, :1 uonncctiun hotwct-u said prt-s urc llltllli ll' and said cant \vltcrclw said cant is adaptcd to rctract tltc szunc. clamping nicans about said strip comprising a tnorahlc. tncnthcr harina pin rality of pins. a projcctiou rcvoltthlc ahout said Stt'Olldntcntioucd shaft. :1 slidalllc tncnthcr having an opcratiru t'oltnt't'tintl with said pl'ojcrlion and adztptcd to open and closc said clantpin" tucan aid pins living: thrust through said strip whcn said clamping tittans in closcd condition. a third shall Inounlcd upon said l'rantc. a 111k upon said shat't. a slottcd link hctwccn id crank and said clamping inc. n cotuitcr-ltalanciug ntcans adaptcd to tcnd to hold tid clamping ntcans in its uppcrntost position, conncctions ht-twccn said shat't's and ronnuctions \VilLl'Uity tltc satuc at adaptcd to hc drircn front a common source til' |io\\t|.

:tl. tn apparatus of tltc class dc. ihcd. a urcc of light. nc. tivc holding in ans. :1 supply roll adapttd to hold a strip vot' papcr, a rcrciriug roll adaptcti to receive said .strip at papcr front said supply roll. and automatic tucans adaptcd st 'ccssitcly to placc a cries of portlous of said strip oi papcr opposltc said in tiro holding uicans and cxpos -d to d-sonrrc of light and tltcn to rclcasc the papal.

a pulley upon said receiving roll, a belt upon said pulley,

7 said casing, a supply roll adapted to hold eeaaee 28. In apparatus of the class described, negative hold ing means, a supply-roll adaptedto hold a strip of paper, means for guiding said strip of paper past the negative, 21 receiving roll adapted to receive said 'strip from said 'supply roll, automatic means adapted positively to grip and draw said strip for a predetermined distance with reference to said negative holding means, and means adapted to release said strip and retract said gripping means.

29. In apparatus 6! the class described, negative holdin'g' means, a supply roll adapted to hold a strip of paper, means for guiding said strip past the negative, a receiving roll adapted to receive said paper from said supply roll,

a clamp about said strip, automatic means adapted to close said clamp and positively grip said strip, and to open said clamp and release said strip, and means adapted to impart a reciprocating movement to said clamp.

' 30. In apparatus of the class described, negative holding means, a supply roll adapted to hold a strip of paper, means adapted to guide the strip past said negative holding means, a receiving roll adapted to receive said strip, means adapted to maintain said receiving roll under tension, a clamp about said strip provided with a pin, automatic means adapted to close said clamp and thrust said pin through said strip, means adapted to reciprocate said clamping device, and means for withdrawing said pin and releasing said strip when said clamping means is at the lower extreme of its path of travel. .31. In apparatus of the class described, a source of light, a casing, means adapted to hold a negative at one end of a strip of paper, means for guiding the strip past the negative, a receiving roll adapted to receive said strip from said-supply roll, automatic 'means adapted successively to place a series of pcfiions of said strip of paper opposite said holding means and exposed to said source of light and then to release the paper, and automaticv means adapted intermittently to I press said strip against the negative.

32. In apparatus of the class described, a frame, aurasing mounted thereon, a source of lighta'djustably positionedg 40 -within said casing, negative holding means at one end thereof, a, spring-retracted hinged shutter adapted to: swing into a position between said negative holding means and said source of light, a shaft mounted upon said frame,

a cam upon said shaft, a connection between said shutter and said cam whereby said cam is adapted to close said shutter against the force of said spring, a roll adapted to hold a strip of paper, means for'guiding the strip past the negative, a receiving roll adapted to receive said strip from said first mentioned roll, means for maintaining said receiving roll under tension, :1 spring-pressed slidable member adapted to, press said strip against the negative, :1

second shaft mounted upon said frame, a cam upon said shaft, a connection between said pressure member and said cam whereby said cam is adapted to retract the same, clamping means about said strip comprising a movable member having a plurality of pins, a projection revoluble about said second mentioned shaft, a slidable member having an operative connection with said projection adapted to open and close said clamping means, said pins being thrust through said strip when said clamping means is in closed condition, a third shaft mounted upon said frame, a crank upon said shaft, a slotted link between said crank and said clamping means, counterbalancing' means adapted to tend to hold said clamping means in its uppermost position, connections between said shafts and connections whereby the same are adapted to be driven from a common source of power.

In testimony wherot I aflix my signature, in the presence of two witnesses.

ALVIN H. MALLISON.

Witnesses J. F. Kmnonnnnnn, N. DWIGHT WYMAN. 

